| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
|
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Introducing the ZW32-12 outdoor high voltage vacuum circuit breaker, affectionately dubbed the 'circuit breaker.' This exceptional outdoor distribution switchgear is crafted to perform impeccably at a rated voltage of 12kV, powered by a robust three-phase AC of 50Hz. Its versatility shines as it masterfully manages the interruption and reconnection of load, overload, and short circuit currents within the power grid. Boasting cutting-edge overload and short circuit protective capabilities, it effortlessly meets control and measurement demands while offering advanced remote control and monitoring functions. Widely deployed across substations, industrial domains, and mining enterprises, it provides unrivaled control and operations, making it the quintessential choice for environments demanding frequent and reliable performance.
Structural Features:
Meticulously designed, this circuit breaker features a pioneering three-phase pillar dry design.
Constructed with a fully enclosed structure, it guarantees unmatched sealing, exceptional moisture resistance, and anti-condensation features, making it an ideal selection for high-temperature, humid climates.
Employs cutting-edge vacuum arc extinguishing technology, ensuring superior insulation reliability.
Ensures seamless opening and closing actions, providing safety with zero risk of combustion or explosion.
Boasting a compact, lightweight design, it requires no maintenance and promises a remarkable longevity.
Offers versatile operation modes - choose from manual, electric, or remote control for optimal flexibility.
The operational mechanism is expertly sealed at the switch box's base, providing robust protection against outdoor environmental corrosion.
Featuring an innovative, simplistic design with a resilient mechanism, it guarantees reliable dynamic performance, a compact form factor, and an impressive service life extending up to 10,000 cycles.
Main Technical Parameters:
|
No |
Name |
Unit |
Data |
|||
|
1 |
Rated voltage |
kV |
12 |
|||
|
2 |
Rated current |
A |
630 |
1250 |
||
|
3 |
Rated frequency |
Hz |
50 |
|||
|
4 |
Rated insulation level |
1min power frequency withstand voltage |
Dry test |
/ |
42/48(fracture) |
|
|
Wet test |
34 |
|||||
|
Secondary circuit to ground |
2 |
|||||
|
Lightning impulse withstand voltage (peak value) |
75/85(fracture) |
|||||
|
5 |
Rated short circuit making current (peak value) |
kA |
50 |
63 |
||
|
6 |
Rated short time withstand current |
kA |
20 |
25 |
||
|
7 |
Rated peak withstand current |
kA |
50 |
63 |
||
|
8 |
Breaking times of rated short circuit breaking current |
Times |
30 |
|||
|
9 |
Rated short circuit duration |
s |
4 |
|||
|
10 |
Rated operating voltage and rated voltage of auxiliary circuit |
V |
DC220,AC220 ,AC/DC220 |
|||
|
11 |
Rated operation sequence |
/ |
Off-0.3s-on-off-180s-on-off |
|||
|
12 |
Rated current of over current trip |
A |
5 |
|||
|
13 |
Mechanical life |
second |
10000 |
|||
|
14 |
Allowable wear accumulative thickness of moving and static contacts |
mm |
3 |
|||
|
15 |
Rated current of over current release |
A |
5 |
|||
|
16 |
Current ratio of current transformer |
/ |
200/5 400/5 600/5 |
|||
|
17 |
Contact opening distance |
mm |
9±1 |
|||
|
18 |
Contact overtravel |
mm |
2±0.5 |
|||
|
19 |
Average opening speed |
m/s |
1.2±0.3 |
|||
|
20 |
Average closing speed |
m/s |
0.6±0.2 |
|||
|
21 |
Opening time |
ms |
≤40 |
|||
|
22 |
Closing time |
ms |
20~45 |
|||
|
23 |
Closing bounce time |
ms |
≤2 |
|||
|
24 |
Asynchrony of three phase closing and opening |
mm |
≤2 |
|||
|
25 |
Three phase circuit resistance |
μΩ |
≤80 Band isolation≤120 |
|||
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